System Overview: The RD-681C/UNH Recorder-Reproducer is specifically designed for demanding applications. It uses a state of the art carrier grade server configured with two 16-channel Line Interface cards to provide recording capability for 32 channels. The RD-681C can accomodate up to six such Line Interface cards, supporting 96-channel recording capability. For larger systems, the Line Interface cards can be plugged into a separate chassis. The server occupies only 6U space in a 19-inch rack and is 19-inch deep.

The RD-681C/UNH is capable of interfacing and recording AN/TPX-42 Radar video data via an optional RS-422 interface using the HDLC protocol. Additional data interfaces and protocol support can also be provided. The server is configured with dual Intel Xeon Processors clocked at 3.2 GHz; 1 GB of fault tolerant (ECC/Registered) DDR2 memory, 2 redundant internal (RAID-1Mirror) SCSI hot swappable drives for the operating system, 2 redundant internal (RAID-1Mirror) SCSI hot swappable drives for data storage, low-profile CD/DVD drive and hot-swappable redundant power supplies. Typically, the system can record and preserve data for up to 90 days. The archive period is user-selectable (15 to 45 days). A Quarantine feature may be used for preventing erasure of data of interest after expiration of archiving period. Key features include; Unlimited real-time Monitor, Distress Monitor (Instantaneous Playback), Time Synchronous Playback of up to four audio channels and radar data, simultaneous Record and Playback Mode, Ganged Audio Recording (combining two incoming audio channels into one recorder channel), Copying of recorded voice & radar data on portable media (CD or DVD) and remote audio and alarm ports.